[devilbunny]

Tchoup is just unpronounceable to most outsiders; the shibboleths are the streets that are pronounced very differently from what it would be anywhere else. Like Calliope (rhymes with TALLY-hope) or Burgundy (emphasis on second syllable).

[bitwize]

Or Chartres ("Charters") or Melpomene (/ˈmɛl.pə.ˌmiːn/), I get it. My wife has corrected me on quite possibly each and every one of the streets with a locally specific pronunciation.

Ooh, thought of another good place name like that: Quincy (/ˈkwɪn.zi/), Massachusetts! Massachusetts has a fair number of those, owing to its English settlement heritage.